moving the OpenGL examples to the core

java/examples/OpenGL/Pixels/GetPixels/GetPixels.pde

@@ -0,0 +1,30 @@
+void setup() {
+  size(255, 255, P3D);
+  
+//  for (int x = 0; x < width; x++) {
+//    for (int y = 0; y < height; y++) {    
+//      int c = color(x, y, 0);
+//      set(x, y, c);    
+//    }
+//  }  
+
+  loadPixels();
+  for (int i = 0; i < pixels.length; i++) {
+    int x = i % width;
+    int y = i / height;
+    int c = color(x, y, 0);
+    set(x, y, c);    
+  }
+  updatePixels();
+}
+
+void draw() {
+  for (int x = 0; x < width; x++) {
+    for (int y = 0; y < height; y++) {    
+      int c = get(x, y);
+      set(x, y, c);
+    }
+  }
+    
+  println(frameRate);
+}  

java/examples/OpenGL/Pixels/SetPixels/SetPixels.pde

@@ -0,0 +1,16 @@
+void setup() {
+  size(400, 400, P3D);
+
+  background(0);
+}
+
+void draw() {
+  for (int x = 0; x < width; x++) {
+    for (int y = 0; y < height; y++) {    
+      int c = color(random(255), random(255), random(255));
+      set(x, y, c);    
+    }
+  }
+    
+  println(frameRate);
+}  

java/examples/OpenGL/Pixels/UpdatePixels/UpdatePixels.pde

@@ -0,0 +1,15 @@
+void setup() {
+  size(400, 400, P3D);
+
+  background(0);
+  loadPixels();  
+}
+
+void draw() {  
+  for (int i = 0; i < pixels.length; i++) {
+    pixels[i] = color(random(255), random(255), random(255));    
+  }
+  updatePixels();
+    
+  println(frameRate);
+}